Rivet and bolt making machine.



J. T. WALLACE.

RIVET AND BOLT MAKING MACHINE.

v I APPLICATION FILED 11111.5, 1911.

1,()27,Q1 7, Patented May 21, 1912.

6 SHEETS-SHEET 1.

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J. T. WALLACE.

RIVET AND BOLT MAKING MACHINE.

APPLICATION FILED AUG.5, 1911.

Patented May 21, 1912.

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J 4 (jazz-KM Zyfiwz 0M 6 SHIIIIS-SHEBT 3.

' Patented May 21, 1912.

J. T. WALLACE.

RIVET AND BOLT MAKING MACHINE,

APPLICATION TILED AUG.5. 1911.

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n E=======U I n J. T. WALLACE. RIVET AND BOLT MAKING MACHINE.2111011101: 11111111 11116.5, 1911.

1,027,017. Patented May 21, 1912.

6 SHEETS-SHEET 4.

J. T. WALLACE- 4 RIVBT AND BOLT MAKING MACHINE.

APPLIOATION P112511 AUG. 5, 1911.

1,027,017. Patented May 21, 1912.

8 SHEETS-SHEET 5.

, wwim 3 J. T. WALLACE. RIVET AND BOLT MAKING MACHINE.

APPLIOATION FILED AUG. 5, 1911.

Patented May 21, 1912.

6 SHEETS-SHEET 8.

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v UNITED To all whoin it may concern: Y

Be it known that I, JOHN T. WALLACE, a citizen of the United States,residing at St. Louis, Missouri, have invented a certain new I 5 andusefulImprovement in Rivet and Bolt Making Machines,'-ofwhich thefollowing is a full, clear-{and exact description, such as ivill'ena-blefothers skilled in the art to which appertains to makeand usethe same.

'Tliis invention relates to. machines for .making rivets and bolts.

One object of my invention is to provide a compact rivet and bolt makingmachine that has a greater capacity than the machines heretofore in use,and which can be maintained and operated by less skillful me- ;chanicsand at a lower cost than such prior machines. a Another object is toprovide a machine of the character described that comprisescomparatively 'few' parts which are so constructed and combined togetherthat there is very little liability of lost motion developing betweenthe cooperatinginoving parts of the machine, thus insuringperfectalineheader."

Another object is to provide a rivet and bolt making machine which is sodesigned that; the dies and other parts which have to be adjusted canbe" set in position quickly andaccurately by work men of only ordinaryskill. "Xnother object is to provide a rivet and bolt making machine inwhich the ejecting mechanism and the member that carries the movabledies are so arranged and operated with relation to each other that thereis no liability of the articles sticking to the dies when the dies areseparated. And still an: other objectis to provide acompact machine ofsimplec'onstruction which will make a "plurality of articlessimultaneously at each f operation hf the machine, the machine being(designed that-articles of the same size, or rr 'd'ifl'e" at 'zez-danibemade attheasame we 2.1- g,,,., v and desirableifeatures.oflmy Y ntionwi ll-" be he'reinatten pointed out. t the fa ctithat-vthe machine hereaptedt to bet-used tor. mak ng i' wZE-will-herei nafter also JOHN T.WALLACE. or s'r. Louis, mrssoiim.

, mm AND BoLriiiKiime imcnmii.

Specification ot Letters Patent. Application filed August 5, 1911.Serial No. 642,541.

mchtof the dies, ejecting mechanism and v discharging the articlesirtnrmemeaiuay z 1-912.

the term article in referring to .the;prod net of the machine. Figurel-of the drawingsiis a side eleua gfi tional view of amachineuconstimctedainac-,g

plan view of said machine Eig fiiis amcrt cal longitudinalsectionalmiew; Fig-4.15 vertical transverse sectionaln iew'itakeni1,.-e0 approximately the line H OfQPI igQQ Figlj cal cross sectional,vi'ewgtaken on ap ,roigikz mately the line 8-8 .of Fig is aj detailsectional view takenfon proximate ygf'zo the 'line 9- -9 of Fig.8;loiiia'ifieyvr similar to Fig. 9,.showing' e ope iation'" f the safetydevice; Fig. ,1 af,ei'igss: s,ectional view of the uppendie' hlfock takeii" in approximately the. line ll-li fiofilFi :1 ;'.'75 Fig. 12 is a'perspective vieyvfof one o'thaf dies; Fig. 13 is a perspective vi' vfpfoiie''ot' the headers; Fig. 14 isa perspectivd ieu"T of one of thecutter blocks and Figs; "15 and"; 16. are side elevationalviewsftifitlie ejecting mechanism. Briefly described, the machineilterin q shown comprises a set loiyeiif dies 'd'cfo i" operating set ofupperdies, 'm'eans fo1 -.fee"d'- ing rods or bars of iron to said'dies'fmea'iis" for severing said rods simultaneously into shortsections or lengths, andmea 'ns'for up 7 setting one end of each ofsaidshort s'ections so asto form a head thereonv andthus'p'rokduce a rivetvor bolt, themachinewhiclrl" 9 have herein illustrated as thepreferred'jembodiment of my invention 'b'ein' provided with meansfor'making four art e'les simultaneously at each cycle of operations ofthemachine. The upper dies are carried by a lever which is 'plvotallymounted interme-f diate its ends on bearings sup orted by the frame ofthe machine, and the '[gaderswliich' it-heli dsie fih, r l ti t ,1 f bsshesid use fi reeipm'cntingly 10o ,inountedina g'uidev'vziy came a-amoftl A Qifiecliamsih:

cordance with my inventiong lfjgfldsgmt V5 is a verticaltransverseasectipnalview, 2

which carries the headers Fig 8 sa vertii.

lodged between the =ably consists of alarge the means which is employedfcr separating the dies is so designed amtfuir iris-"ta? bility of theejecting mechanism failing to dislodge the articles at macros ofoperations. therebypreventing the articles from sticking to the dieswhen said diesv are opened. The discs areso arranged that they can beset or adjusted quickly and easily even by a workman of only ordinaryskill, andmeans of novel construction is provided for preventingbreakage-. fthe dies or the parts of the machine ,which carry the diesor' on which "the 'di'e s s enna-area, in case two or more articlesshould'become' dies accidentally in such a manner astti prevent the diesfrom closing.

Referring to the*- drawings which ijllustrate the preferred form of myinvention, A designates the frame of the machine which comprises arelatively thick or heavy bedplate 1, and suitable legs, standards orvertical walls, for supporting said bed-plate.

The mainoperating shaft B of the machine is arranged transversely of thebedplate 1 and is journaled in suitable bearings 2 thereon, saidshaftbeing provided with cams for operating'the feeding mechanism, theejecting mechanism, anchthe lever which carries the upper dies, asherein more clearly described. The lower dies 3 are mounted in a dieblock C that tits in an opening formed in the bed-plate 1, as shown inFigs. 3 and 5, and the upper dies 1 are mounted in a die block D whichis carried by a lever F arrangedyabove th'e bed-plate 1. ,Said lever Fis provided intermediate itsends'witlnarms F that project laterally anddownwardly, as shown in Figs. 1 and 4, and adjustable bearings 5 aremounted in stationary brackets 6 on the sides of the frame of themachine for carrying said lever. The bearings 5 preferably consist ofshort horizontally arranged shafts provided with pointed ends 5, asshown in Fig. 4, that project, into conical-shaped seats formed in theside faces of the arms F on the lever F, it being preferable ,to formsaid seats in hardened blocks of metal that are set, into the arms F .AEach bearing 5 is provided at its outer end with ahead 5", as shown inFig. 2, through which laterally projecting guide rods 7 on the brackets6 pass, said guide rods having nuts 7 mounted thereon so as to enablethe bearings 5 to be forced inwardly toward the arms Ff by tighteningthe nuts 7*.

The lever F preferheai'y casting which is so proportioned that it willsuccessfully withstand great strains, and as said lever carries theupper dies and also actuates them, there is no liability of lost motiondeveloping between the dies and the means which opens and closes thedies, namely, the am 8 on the main operating shaft 13, which engages therear end of the lever F and thus depresses the front end of said lever.That is to say, by using a single member for transferring movement fromthe main. oper-' atmg shaft of the machine to the upper dies 1practically eliminate lost motion-and thus insure perfect alinemcnt ofthe upper dies with the lower dies. .Th'e'way in which the level- F ismounted reduces to a minimum the liability of the fulcrum of the leverwearing, but in case the ends of the bearings 0, do become wornslightly, said bearings can "be adjustedinwardly or moved .:intomoreintimate engagement with theilever by Simply adjusting the nuts 7 whichare arranged at the sides of the machine in such a manner Means isprovided for locking the bearings 5 in adjusted position, and in themachine herein shown said means consists of wedges 9 mounted inguideways formed in the brackets 6,"as shown-clearly in Figs. 1, 2 and4, and provided with nuts 9* that-scan be tightened 'Tso as to draw saidwedges tightly against the bearings--5.--The only other point of thelever F which is apt to wear is that part of the lever which is actedupon by the cam S butwvear at this point can be corrected easily bymeans of a removable hardened wear plate 10 on which the cam 8 acts, asshown in Figs. 9 and 10.

The cam 8 which actuates the lever F is so designed that the upper diesare not separated completely from the lower dies until after thearticles have been discharged by the ejecting mechanism so that there isvery little liability of two articles becoming lodged between a pair ofdies at the same time. I desire, however, to chine with a safety devicethat will prevent the lever F, the dies, or the parts, gifthe machinewhich carry the dies, fromlietzoming broken in case an obstructionshould get in the path of movement of the lever F and thus preventitfrom completing its stroke or closing the dies.

The safety device of the machine. herein 'shownconsists of an arm 11pivotally connected at 12 to the rear end of the lever F and arranged ina bifurcated portion in'the rear end of said lever, as shown in Figs. 8to 10, and a bolt or other suitable device 13 for securing the free endof the arm 11 to the lever so as to prevent said arm from movingrelatively to the lever .under normal conditions. T he bolt 13 passesthrough the free end of the arm 11 and through a crosspiece 1.4 on thelever F and thus securely locks said arm and lever together. The cam S,'whichactuates the lever F, engages the that they can be gotten ateasily.-

provide the ma I I 30 face of the cutter block.

path of movement of thelever F, however, and. prevents, said lever frommoving its full strokeor far enough'to close the dies, the ,bolt 13 Willbreak, as shown in Fig. 10, and thus permit the arm ll to move, underthe influence of the carn 8 on the main op crating shaft, while'thelever F remains at rest.- fHOt-her. safety devices could, of course,

. be used-for this purpose but I prefer to use 10 the onelherein shown.on account of its simplieity andefliciency a ;The means that severs therods or bars fromwhich theart-icles areformed consists'ofz-cutterblocks.'15 vhich cooperate with the upper dies 4, oneeutterblock being pro- -qv'1ded for. each .pairof dies.

Each of said cutter block's has hole or opening 16 through which arod-or bar of iron m is fed, I and-.said cutter block is arranged insuch a 20 'mannerflwith relation to the upper die 4 with which itcooperates that the portion or section of the red at; whichprojectsiinwardly beyond said cut-teiwblock, as shown in Fig.

'3, will be severed when the (lie 4 moves downwardly "past the opening16 in the'cutter'block-through;which the rod passes, the cutter blockand upper die cooperating with eachothen to form a shearing device thatsevers the'rod wflush with the front The cutter blocks 15 are preferablyadjustably mounted in a cutter bar 17 that is set in 'a recess in thelower die block C- arid held in place by suitable fastening devic'es-lS,as-shown in Figs.

'35 3 and 5, saideutter-ba'i comprising a remov- V abletop section 1.9which bears against flat faces'20, onthecutter blocks andthus holds themsecurelyiii-adjusted position.

As p'reviouslysta'ted, one object of my 1n- 40Jventionis'to pro idesmachine in which the dies can be"adjustechqaicld and accurately bya'workman of o 'ily ordinary skill, thereby 'overcoming' the necessity ofemploying a skilled high pricedfwtirkman to operate the machine an'd'"'keep i'tin adjustment. I accomplish thisjbymounting each set. ofcutters'in a die"lilock wliich can be adj ustcd laterally with relationto the longitudinal center of the "machin eiand providing devices foradjusting the'dies vertically which are *"soari'anged that they can bemanipulated easily, a "separated"f'l'j'usting device being providediforeach "die."

' gnaw '11 Figs.

and 6. the lower die ews 23 which are adapted v with Verticallydispos'cd' the die: block C and pro- I to gcm eiit 'ivitli*the dies" soas to torce "thenr tightly" against the" die block, One or more nuts 24are sli lingly mounted in the die blocks 0 at the lowcr'end of each ofthe vertically disposed-guide; ways '2]. of said die block, and boltsonset screws 25 are threaded into saidnuts sons ,to bearagainst thelower end ,ot'the. d es 7b from turning when the bolts 25 are rotated. i

The lower die block C can be adjusted lat-r erally by means of setscrews 27 in the stationary frame A of the machine which bean, againstthe opposite ends of said die block, V as shown in Fig. 5, and anysuitable means,85 such, for example, as fastcningdevices 28, may be usedfor securely clamping the die block C to the table or bed-plate l. of.the. machine, said die block .beingso prop'o r-.. tioned-that long orshort dies can be used in same, as shown in Fig.11', and thus make itpossible to form long or short articlcsain, the machine. The upper dieblock D isv of similar construction to the lower die. block 0, justdescribed, and set screws 27" are employed for adjusting the upper dieblock 1) laterally. Devices 2'2, 23, 24, 25, 26 and 28, similar to thoseused in connectionwith thelowerdies and die blocks; are employed torclamping the dies 4.- in position, and.for.ad-- justing the dies 4vertically. ,1 ,7

In order that the upperdies 4:.may ad..- justed accurately with relationto the cutter blocks 15 Ihave provided the lever F with] means formoving the upper die bloclcD longitudinally of the machine so as tomove. the upper dies toward or away from thecutter blocks 15. The meansherein shown for adjusting said upperldie' block in this manner consistsof a wedge 29 arranged be. tween the die block D and. the rear verticalwall of the pocket or recess of thelever F in which said upper die blockis seated and; provided with one or more screw-threaded shanks on whichnuts 30 are mounted as shown in Figs. 2 and 3. 'iBy adjustingthe nuts 30the die block I) can be moved l0n i-, t-udinallv of the machine and thuscausetlie,

upper dies 41- to move close enough to thejcut-x I tor blocks 1'5 toproduce a clean shearing cut.

In adjusting the dies the operator arranges threesides-"of the die,

a bar or straight. edge, 'not shown, on lugs 31 on the lower die block Gs,0=thatsaid bar will extend transversely across the lower dies.Said'bar then clamped securely in; position on the lugs 31, preferablybytincans of the lever F, and the operatorthcreazt ter.

adjusts the lower dies 3 verticallybyturning? the set screws 25 so as tocause the upper accurately position and the positioning bar has ends ofsaid dies to bear firmly against the 'under side of the positioning bar.After the lower dies have-been clamped securely in een removed the upperdies 4 can be adjusted by using the lower dies as stops 'to determinethe position of the upper dies when the forward end of the lever F isfully depressed. The lateral adjustment of the dies can'be effectedquickly and easily by simplymanipulating the set screws 27 which 1coiiperat'e with the lower die block or the set screws 27 per die block.The headers which cocperate with the up 32 which upset the ends of i therods as so as to form heads on the'short sections which are severed fromthe rods, are adjustably mounted on a cross-head .Gr

, that reciprocates longitudinally of the machine in a guide way formedin the bedplate l of the machine, said cross-head be- -inwardly and VFig. 4,

I also prefer to provide said guideway with a center rib 37, as shown inFig. 4, which projects upwardly into a longitudinally disposed groove onthe bottom face of the cross-head, the side walls of said longitudi--nal groove and. the sides of the rib 37 being preferably inclined in themanner shown in Fig. 4 and provided with removable wear plates 38. Thecross-head G is so proportioned that the lower edge of same is spacedaway slightly from the'bottom of the guide-- cross-head travels andwayin which said from the upper edge of the rib 37, so that said cross-headcan work downwardly as the'sides of same or the sides of the guidewaybecome worn and thus automatically take up the wear on these portions ofthe machine, the cross-sectional shape of said cross-head and guidewaybeing such that there is no tendency for the wear plates on the sidewalls of the guideway and .on the rib 37 to become groovedlongitudinally adjacent their lower edges or the wear plates on thecross-head to become grooved longitudinally adjacent their upper edges.The

wear plates are retained in position by means of suitable fasteningdevices which pass through openings .39 therein, and each wear plate ispreferably rovided at its center with a cross rib 40 and at its oppositeend with ribs 41 arranged at approximately right angles to the rib 40 soas to securely hold the wear plate in position. Tracks 42,

Fig. 3. The rock shaft which are detachably connected to the; top faceof the cross-head G, lie underneath horizontally disposed guides 43 thatare adjust-ably connectedto brackets 44011 the bedpl-ate 1 of themachine, as shown in Figs.

and .4, said guides 43 being connected to the brackets by means of bolts45 on the brackets that, pass through elongated slots in the guides, andthe brackets 44 being provided with setrscrews 46 for moving said guidesdownwardly into intimate engagement with the tracks 42 on thecross-head.

The mechanism herein shownfor ejecting the articles from the diesconsists of fingers 47 mounted in openings 48 in the cutter blocks 15and adapted to be projected slightly beyond the front faces of saidoutter blocks-at a certain period in the cycle of operations ofthemachine so as to impart a quick and sudden tap to the articles in thedies, one of vided for each cutter block and pair of dies.

All of the fingers47 are connected to a bar 49 which is pivotallyconnectetd to a pair of arms 50 on a rock shaft 51 arranged transverselyof the machine adjacent the front end of the bed-plate 1, as shown in 51is provided with a depending arm 52 to which a rod 53 is connected, andthe rear end of said rod is pivotally connected to a lever 54 which isoperated intermittently by means of a cam 55 on the main shaft B of themachine so as to move the fingers 47 from the position shown in Fig. 15into the position shown m Fig. 16 and thus eject the articles from thedies. The rod 53 is moved in the opposite said fingers being pro-'85direction so as to restore the fingers 47 to normal position by means ofa coiled compression spring- 56arranged between a collarv 57 onsaid rodand a stationary abutment 58 on the frame" of the achine. Any suitablemeans may be us catching the articles as they are ejected from the diessuch, for example, as receptacles H arranged under the dies, as shown inFigs. 3 and 5.

The cam 8, previously described, causes ther front end of the lever F tobe depressed once during each cycle of operations of the machine, and acoiled compression spring 59 is used for restoring said lever to normalposition so as to separate the dies, said spring being arranged on a rod60 between a head 61' on thelower end of said rod and a spring ofthe'machine, as shown in Fig. 3. The upper end of the rod 60 passesthrough a block 63 which has trunnions 63 that fit in-curved seats orrecesses 64 in the rear end or bifurcated part of the lever F, therebypermitting the lever F to assume an angular position with relation tothe rod 60. In order that'the rod 60 may have a slight oscillatorymovement I have provided the seat 62 that bears against the frame.

rodilpasse's, with trunnions62*whieh fit in curved: .zseats' or-irecesses lin a" stationary bracket "on the--frame fiof the machine, the

spring seat member 62, through which said spring' 59% exerting. upwardpressure on "the member 62 and thus holding ityimengage ment with saidbracket; a

In order to eliminate the possibilityof the dies sticking and thusfailing to open at each cycle of operations of the machine,

I have provided the crank 34 on the main shaft of the machine with a lugor projection 65, as shown in Fig. 3, that strikes against the lowerside of a yoke 66 on the lever Fso as to impart a quick short blow tosaid lever after the heads have beenformed on the articles and thuscause the upper dies to move upwardly a short distance away from thelower dies. The cam 8 which depresses the front end of the lever F has asurface 8 .which is so arranged that the lever F will be held for aninstant in the position to which it has been moved by the engagement ofthe lug 65 with the yoke 66 and thus provide sufficient time for theejecting devices 47 to operate before "-the'dies are completelyseparated. Consequently, it will be impossible for the articles to stickto the upper dies when the dies are fully opened-because the articlesare positively ejected before the dies are completely separated, theupper dies being raised thus move it positively far enough to separatethe dies sufficiently to release the article, the lever F being restoredto normal position by means of the coiled compression spring 59,previously described.

Any suitable means may be employed for feeding the rods m to the dies,it being nec- .essary.liowever, to use a feeding mechanism whiclr e willfeed the rods intermittently and different distances in case articles ofdifferent lengths are beingmade in, the machine.

ifllhe feeding mechanism ,of thejmachineherewl-n shown does notv formpart of 'any present invention'and therefore I. have not ,illusltrated;the details" of c0nst-ructioih Qf said feeding mechanismz Suffice -it,,to say that the -'feedin-gamechamsm here n shown h con it. femar li edso as to completely separii tethei dies a :nx AIE operates when saidcarriage moves in one moi i'ng" rearwardly on the'"return 'st-roke 'ofthe carriage by means of a prvota-lly mo nt ed dog 68 mounted on a partOf the machine that is stationary with relation toithe care- 70.

ria'ge l."'[he carriages I are movedforwardlyand backwardly by incans'ofI'O Clf arms"6$ tl1at,are securedto'a rock shaft -7e ll which isprodided with a depending arm 71 to whie'hon' end of a" rod or link 72is connected, as shown in Fig. 1". ,Theopposite end of said link isconnected; toa lever 7 3 which is actuated intermittently by: a cam 74on the main Slltlft'TB of the machine so as-to move the arms 69inz.onexdireotiony-x and said arms are movedin"theoppositerdi--1 rectionby means of ajeoiled compressiona; spring 75 mounted ontheirod,72,;between-1a collar 76 on said rod and a qstationaryiz -ibracket 77 on the frame of the-machine,

The rods w from which the articles are formed, are fed intermittentlythroughtheg' openings 16 in the cutter: bl cks 15,: and when the frontend of theetlever F moves ndownwardly said rods will be severed1and,,90v

clamped securely betiveen-thewnpper and lower dies. Whenthe cross-headGmo forwardly the headers 32 thereon upset tli ends of the short sectionsiof ,rods that;tarev clamped lbetween t he' dies and thus.tfoi'.ms

heads thereon. Thereafter the leverF raised slight-1y .,or lashort-distance as tof, release the articles'and permit -the ejectingdevices 47 t0 engagethe articles and force them from the dies, the leverF being moyeil, upwardly afte fthe articles have been ej'ec't Amach'inehof the constriic tiqn aboy scribed has a great capacity beeailelt'll pal a plurality of articles at' each-cycleofo ationsQ Furthermore,theemachin'ejis co pact, and as it takesup mucbflless s pace I a numberofsingle machinesa-gfreat"savi of .shop space is effected I n faet 'aifmchine of this construction eouldf be',iisetl in e h conjunction 'withthe rolling' inachinew i" which'the bars or rods are formedas themachine has suflicient c japacityl t'o':handle the rods turned out byone rolling mhehine thereby overcoming the necessity ofre -heat ing andre-handling the rodsf'asfwasnee n V sary with the bolt andriyetni'akingimachines heretofore in use which were so a m Another-advantageqf m'yim hiueis may rivets "or; bolts of different isizesj'lengt'lis ori kind an be made in the'ma'chine'at'the same T means foradjiis'tingthe'dies is i achine will not batter up becausethe dies donot have to be forced together tightly enough to compensate forlost'motion, this being due to the fact that a single member, namely,the lever F, is employed for transferringmovement from -,the operatingcam of themain shaft tothe dies. By eliminating battering and rapid{wearing of the dies I not only prolong the life of the machine but Ialso obtain perfect articles that are free from fins such as areproduced by imperfect fitting dies. The safety device of my machine isalways sure to operate whenever an obstruction gets between the diesthat prevents them from closing tightly for I in my machine the movabledies are actuated positively by a single'l'ever to which the powerapplied directly through means of 1 the safety device.

described 'my invention,

.Having thus what I' claim as new and desire to secure by Letters Patentis:

11. A rivet and bolt making machine comprising a bed-plate,

a lower die mounted therein, a lever arranged above said bedplate andprovided with an upper die, mechanism for intermittently feeding a rodto said dies,

. rods are dies, upper dies, a'stationary device cooperating with the:die on said lever to shear SaHlIQd into short dengths, a headingmechanism, and a cam cooperating wlth one end of'sa d lever forpositively moving said lever so as to close said dies.

2. A rivet and bolt making machine 5w 'vided wit-h a plurality" of lowerdies arranged side by side in the same horizontal plane, means forintermittently feeding a plurality of parallel arranged rods over saiddies, a lever which carries said upper dies, a cam which acts upon saidlever and moves said lever so as to close said fed, said cutterscooperating with one of said sets of dies to shear said rods into shortsections, means for forming heads on said sections, and means for eecting the articles from said dies. 3. A rivet'and bolt making machinecomprising a pair of dies, means for feeding a rod into operativeposition with relatlonto said dies, means for severing the rod intoshort sections or lengths, means for forming heads on said shortsections, an e ecting device for discharging the completed article fromthe dies, and an operating. mechanism for one of said dies whichseparates the dies slightly and holds them in this position unfwhich'hold a rod while a til after the article has been dischargedtherefrom, s'aidmechanism thereafter causing the dies to be completelyseparated.

r 4. Inia rivet and bolt making machine, dies head is being device forenformed thereon, an eject-in argmglt from gaging the-article and discstationary cutters across'which said position,

the dies after the head has been formed on the article, and an ocrating-mechanism for one of said dies whic prevents the dies fromseparating completely befo device operates.

5 In a rivetand' bolt making machineg iil' pair of dies which areadapted to clamp" rodwhile a head isbeing formed thereon so. 'as to:produce an article, means for causing said dies to separate sli htlyafter the headhas been formed on sai article, an ejecting device whichthereafter operates to discharge the article from the dies, and meansfor thereafter separating the dies com pletely.' 1

3. In a rivet"'and bolt making machine, a. anof dies for clamping a rodwhile a head 13 being formed thereon so as to produce an.

article, a member which carries one of said.

dies, means for positively moving said member a short distance after thehead has been formed on the article so as to separate the dies slightly,an ejecting device which thereafter operates to discharge the articlefrom the dies, and a yielding means for completing the movement of saiddie-carrying member so as to fully open the dies.

7.111 a rivet and bolt making machine, a

stationarydie, a movable die, a lever which "carries said movable die,means acting upon said lever to close the die, independent means forimparting a quick andsudden blow to said lever so as to open the diesmeans for forming a head on said rod when the dies are closed, means forimparting a quick and sudden blow to said lever so as to release therod, said cam being so designed after the rod has been released, meansfor ejecting the article between the dies while said lever remains atrest, and yielding means that restores said lever to'normal'position.

9. In a rivet and bolt making machine, a

stationary die, a movable die, a lever that carries said movable die, acam that engages said lever and moves-it in one direction, a spring forrestoring said leverto normal a yoke on said lever, and a devicearranged the dies, said spring thereafter operating to restore the leverto normal position.

10. In a rivet'and bolt making machine,

a lever provided with a die, a cooperating insideof s'aid yoke andccoperating with same topositively open or separate thatjmovessaid'lever in dne direction, a rod,

a, rockabl e member'ion said lever-through which said rod passes, acoiled compression springarranged' on sald rod between a head athereonand a spring seat member, and a stationary device that forms" a bearingon which said spring seat member can rock dur n the operation of saidlever.

a" rivet and bolt making machine, ollover-provided with a die, acooperating stationarydie ashaft provided with a cam tliat'f'movs'saidflever in one direction, a

yoke on said lever, and a crank on said shaft provided with a projectionthat engages said yoke so as to impart a quick sudden" blow to'saidlever and thus positively open said dies.

111 a rivet and bolt making machine, cooperatin clamping-dies, a leverhaving one ofsai dies mounted in one end thereoffarins projectinglaterally and downwardlyi' the intermediate portion of said; lever,adjustable bearing members which rem"; fulcrum for said lever, and

means thatcooperates with the opposite end of the lever for actuatingthe lever.

"13.1111 a rivet and bolt making machine, cotipe'ratin clamping dies, alever carrying one of said dies, and provided intermediate its endswitharms which project outwardly a'nd downwardly, adjustable bearinmembers which project into recesses in said arms,

meansfor locking said bearing members in adjusted ipbsition, anactuating means forsaid lever that operates upon one end of saidlever,and an upsetting die.

14. In a rivet and bolt making machine, a die-carryingmember consistingof a lever provided, intermediate its ends with a air of side armsthatproject downwardly rom the, body vportion of said lever, bearing membersmounted in a stationary part of the machine,andprovided with pointedends which project into recesses in said arms, and means 'for adjustingsaid bearing members to compensate for wear.

15. In a rivet and bolt making machine, a die-carrying member consistingof a lever provided intermediate its ends with a pair of side arms thatproject downwardly from thebody portion of the lever, stationarybrackets betweenwhich said arms are arranged, bearing members on saidbrackets having pointed ends which, project into, ;re P

Y said bearing members so as to lock them in adjusted position.

1' 4161 In arivetzai-id bolt:makingvmachine ai I clie1ea-rryi1ig; member consisting ofgla pivotally mounted lever whose free end 15 b1tur-'thereto, a safety device that connects said arm and lever together andwhich is adapted to break when it is subjected to an abnormal strain,thus permitting said arm to move relatively to the lever, and anactuating member which acts upon said arm and thus transmits movement tothe lever through said safety device.

17. A rivet and bolt makingmachine comprising a bed-plate, amovabledie-carrying member arranged above the bed-plate, a die blockmounted in the bed-plate and provided with a plurality of removableclamping dies, :1 die block mounted in said movable die-carrying memberand provided with a plurality of cooperating removable clamping dies,and means 'for adjusting both' of said die bloekslaterally with respectto the longitudinal center of the machine.

18. A rivetand bolt makingmachine com prising a bed-plate, a movabledie-carryingcomprising a bed-plate, a movable die-carryw ing memberarranged above the bed-plate, a, die block mounted in the bed-plate andprovided with a plurality of adjustable dies, a die block mounted insaid movable die-carrying member and provided with cooperatingadjustable dies. means for adjusting both of said die blocks laterallywith respect to the longitudinal center of the machine.

means for enabling the dies in said die blocks to be adjusted verticallyindependently or each other and relatively to the die blocks, cutterblocks which cooperate with the movable dies, and means for adjustingsaid movable dies toward and away from f the front faces of said cutterblocks;

20. In a rivet and bolt making machine, a die block provided withvertically dis posed guidewz'iys, removable dies arranged [in saidgu'ideways, means for elamping said .dies in position, 'and a separateadjusting device in the 'die' block for, moving eaeh of the dies longitidinally of it'sfguideway thus enabling the dies'jto be adjustedindependt la eee l l s v, a. 21. In a' rivet and boltfmal nngfl machine,

, a ,die. bloc-k provided with gaiafe'ways' which are closed on threesides, adjustabl'efiies removably mounted in said guideways, de-' vicesthat engage the front faces of said dies and hold them in position, andadjustable devices arranged atone end of said guidewa s for moving thedies longitudis nally of the guideways soas to setthe dies in properposition.

22. In a rivet and bolt making machine, a

- die block,..'a'djustable cutter blocks mounted in said die block,adjustable dies arranged in guide'ways insaid die block, and means foradjusting said dies vertically independently of each other and withrelation to said cutter blocks.

23. Inia; rivet and bolt making machine, a die bltick provided withvertically disposed guideways, adjustable dies arranged in said gii'deways, means for adjusting said dies vertically independently ofeach other and relatively to the die block, and devices on said dieblock on which a bar or straight edge vcan be placed so as to limit theupward;v movement of the diiierent dies and thus enable'them to be setaccurately.

24. In a rivet and bolt making machine, a 'movable die-carrying member,a die block on said member provided with a plurality of dies that can beadjusted vertically indea movabledie-carrying member, a die block onsaid member provided with a plurality of vertically adjustable clampingdies that have cutting edges, stationary cutter blocks which cooperatewith said dies, and an adjustable wedge arranged between said die blockand said die-carrying member for adjusting said die block so as to moveall of the dies thereon toward and away from the front faces of thecutter blocks with which the dies cooperate.

.26. In a rivetand bolt making machine, a bed-plate, a lever arrangedabove the bed plate and fulcrumed'intermediate its ends, die blocksmounted on said bed-plate and on'one end of said lever, dies adjustablymounted --in said die blocks, devices for clamping said dies against thedie blocks in whichthey. are mounted, an operating means that acts uponthe opposite end of said lever, and a reciprocating cross-headprovided-with, headers which move toward said dies and exert pressurethereon in the same direction as that which the clamping devices exerton the dies.

27. In a iiyet and bolt making machine, a

bed-plate,'dies which areadapted toclamp a rod, a reciprocatingcross-head provided with a header that cooperates with said dies, saidcross-head having straight side walls which incline inwardly from thetop sidetoward the lower sidevof the cross-head, and a guldeway for said:cross-head provided wlth straight side walls which incline 1 nwardlyand downwardly from the upper.

edge of said guideway, the bottom face of the crosshead being spacedaway from the bottom of'saidaguideway so that the crosshead can workdownwardly as it becomes worn without liability of causing sharp groovesor angles to be formed in the guideway.

28. In a rivet an boltanaking machine, a bed-plate, dies which areadapted to clamp a rod, a reciprocating cross-head provided with headerthat cooperates with said dies.

said cross-head having straight side walls which incline inwardly fromthe top side toward the lower side of the cross-head, a

guideway for said cross-head provided with straight side walls which.lnchne inwardly.

and downwardly from the upper edge sald gu deway, the bottom face of thecrosshead being spaced away from the bottom of no i said guideway sothat the cross-head can work downwardly as it becomes worn with: 1 outliability of causing sharp grooves or".

angles to be formed in the guideway, a

longitudir'ially extending rib projecting. up'

wardly from the bottom of the guideway and having its sides inclined inan opposite direction to the ad acent side walls of the guide-way, and agroove on the under side of the cross-head for receiving said rib, .thebottom of said groove being spaced away from the topface of said rib soas to not interfere with the downward movement of the cross-head as itbecomes worn.

29.. In a rivet and bolt making machine, a bed-plate, a reciprocatingcross-head mounted-on said bed-plate and provided with headers. a dieblock mounted in said, bed-plate and provided with vertically ad'fi.justabledies', stationary cutterblocks ear ried by said die block, meansfor feeding. rods through said cutter blocks into opera-,y tive positionover said dies, a lever arrangedabove the bed-plate and provided with depending side arms, adjustable bearing mambers which project intorecesses or seats in said side arms so as to form a fulcrum for saidlever, a die block on one end of said lever provided with verticallyadjustable dies which cooperate with the dies on the bed-plate, and .anoperating means for said lever that acts upon the opposite end of the.

lever.

30. In a rivet and bolt making machine, a bed-plate, a reciprocatingcross-head mounted on said bed-plate and provided Withheaders a dieblock mounted in said .bed-plate and provided with vertically adjustable dies, cutter blocks in said die block, means for feeding rodsthrough said cutter blocks lnto operative position over said dies,

' a lever arranged above the bed-plate and provided with depending arms,adjustable bearing members WhlCll rO ect lnto recesses or seats in saidarms so as to form a fulcrum for said lever, a die block on said leverprovided with vertically adjustable dies which cooperate with the dieson the bed-plate, an actuating mechanism for said lever which imparts aquick sudden blow to the lever so as to open the dies slightly and thusrelease 15 the articles which have been formed by severing said rods andforming heads thereon and ejecting devices which charge the articlesfrom said ies before the dies are completely separated.

In testimony whereof I hereunto aflix mj signature in the resence of twowitnesses, this first day of ugust 1911.

' JOHN T. WALLACE.

Witnesses W nLLs L. Cannon, GEORGE BAKEWELL.

ositively dis-

